Enhancing low quality images of naturally illuminated scenes

Details Enhancing low quality images of naturally illuminated scenes Enhancing low quality images of naturally illuminated scenes

2006-09-05

2006-09-05

Alavi, Amir (Department: 2624)

Image analysis

Image enhancement or restoration

Edge or contour enhancement

C382S220000

Reexamination Certificate

active

07103227

ABSTRACT:
A method enhances images of a naturally illuminated scene. First, a set of images Ii(x, y) is acquired of a scene. Each image is acquired under a different uncontrolled illumination. For each image Ii(x, y), intensity gradients ∇Ii(x, y) are determined, and each image is weighted with weights according to the intensity gradients. The weighted images are then combined to construct an enhanced image I′.

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